CN206669692U - Boiler for biomass fuel combustion - Google Patents
Boiler for biomass fuel combustion Download PDFInfo
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- CN206669692U CN206669692U CN201720188188.6U CN201720188188U CN206669692U CN 206669692 U CN206669692 U CN 206669692U CN 201720188188 U CN201720188188 U CN 201720188188U CN 206669692 U CN206669692 U CN 206669692U
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Abstract
The utility model discloses a kind of boiler for biomass fuel combustion, including combustion chamber, the combustion chamber includes Wei Ran areas, primary zone and the burning-out zone set gradually；Combustion-supporting system, the combustion-supporting system include an auxiliary combustion equipment and/or secondary combustion-supporting device, and an auxiliary combustion equipment is arranged in the region in primary zone, and the secondary combustion-supporting device is positioned close on the region in the primary zone of Wei Ran areas one end.The utility model provides a kind of boiler for biomass fuel combustion, by not change burning room specification, effectively realizes that biomass fuel combustion is abundant, and combustion completion.
Description
Technical field
It the utility model is related to field of boilers, more particularly to a kind of boiler for biomass fuel combustion.
Background technology
Biomass fuel refers to that typically mainly agriculture and forestry organic waste material (such as stalk, is sawed using biological material burning as fuel
End, bagasse, rice chaff etc.), the main distinction is in fossil fuel.In current national policy and environmental protection standard, directly burning life
Material belongs to high pollution fuel, is only used in the brick kitchen range in rural area, not in being used in city.The application of biomass fuel,
Actual is mainly biomass molding fuel (referred to as BMF), is using agricultural waste as raw material, by crushing, mixing, squeezing
The techniques such as pressure, drying, various shapings are made (such as bulk, graininess etc.), a kind of Novel clean-fuel that can directly burn.Generation
Zero-emission, reproducible fuel are defined as in boundary to biomass fuel, such as：After burning, biomass fuel sulfur dioxide is almost
It is zero (being specifically les than 0.3%)；Carbon dioxide content is also significantly less than fossil fuel.Because present biomass energy obtains wider
Development, be based on biomass fuel, burnt by biomass boiler, produce and collect the energy.
Because the feature and biomass fuel combustion of coal combustion have very big difference, burning of coal process is relatively steady,
The fixation carbon content of coal is between (70-85) %, and volatile matter general low 30%, it is stable that the volatile matter of coal primarily serves holding of igniting
The effect caught fire, main exothermic phase is the combustion phases of fixed carbon, and biomass fuel is up to 70% due to volatile matter ratio
More than, it is primary combustion exothermic phase.Because the completely burned temperature of fixed carbon is more than 800 °, and volatile matter is at 300 DEG C
Begin to separate out and burn, (400-500) DEG C vigorous combustion, therefore the burning velocity in burning is fast with respect to coal for biomass fuel, combustion
Burn and concentrate；Simultaneously because the calorific value of biomass fuel is low, bulk density is low, need to increase thickness of feed layer to reach load and improves stove
Speed is arranged, a large amount of Volatiles when the fuel temperature for entering burner hearth reaches 300 °, now needs enough furnace cavities,
Meet that the mixing of volatile matter and oxygen is burnt with profit, but because the furnace cavity for fire coal design is less than normal, a large amount of volatile matters come not
And burning burner hearth is just extracted out by air-introduced machine, cause load not reach, stoker personnel for improve output certainly will increase air blast, due to
The requirement of hot department's production technology, the operational factor of air-introduced machine is definite value, it is impossible to arbitrarily adjustment, therefore there is stove when air blast is excessive
During thorax malleation, the situation to coal bunker string fire just occurs, with the aggravation of string fire situation, face arch temperature constantly raises, the master of fuel
Area is fired more close to face arch, in the case where burner hearth often malleation occurs, burns face arch and coal bunker is can hardly be avoided.
Analyzed by foregoing problems, less than normal by solving existing furnace cavity, the unreasonable situation of burning air distribution, which is realized, changes combustion
Ideal, prior art means also can be realized easily.Do not possess place with reference to live place actual conditions pure dilatation
Condition, therefore excess air coefficient is reduced by technological means and plays reduction drum wind action, and combination technology means extend cigarette
The gas residence time, which is finally reached, improves the burner hearth situation less than normal for being unfavorable for biomass fuel combustion；In terms of the air distribution that burns, due to
First air be from below fire grate through fire grate space and by entering burner hearth after oxidation reaction occurs with fuel bed, and now in fuel
The mixing that the volatile matter separated out in furnace cavity on layer is also required to oxygen could realize burning, and First air can not be real well
Now, it is necessary to have Secondary Air to strengthen the burning of this part volatile matter, it can generally increase overfire air fan and solve air distribution
Problem, but combine the problem of foregoing furnace cavity is less than normal, the air quantity of overfire air fan is unsuitable excessive, therefore by furnace cavity and air distribution
Question synthesis consideration is the key of this project technological transformation.
The content of the invention
The utility model is directed to deficiency of the prior art, there is provided a kind of boiler for biomass fuel combustion, passes through
Not change burning room specification, effectively realize that biomass fuel combustion is abundant, and combustion completion.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals：
A kind of boiler for biomass fuel combustion, including：
Combustion chamber, the combustion chamber include Wei Ran areas, primary zone and the burning-out zone set gradually；
Combustion-supporting system, the combustion-supporting system include an auxiliary combustion equipment and/or secondary combustion-supporting device, the once combustion-supporting dress
Put in the region for being arranged on primary zone, the secondary combustion-supporting device is positioned close on the region in the primary zone of Wei Ran areas one end.
Preferably, the secondary combustion-supporting device is located in 1/3 anterior region of primary zone.
Preferably, the secondary combustion-supporting device is apart from fuel delivery means >=800mm.
Preferably, the secondary combustion-supporting device is set along Z axis and perpendicular to fuel delivery means direction of feed.
Preferably, the combustion chamber includes：
Positioned at the face arch of charging aperture, the perpendicular water direction of face arch is set；
Positioned at the rear arch of discharging opening, the leading section of the rear arch is located at corresponding to burning-out zone in region, and the rear arch
Rear end is close to described burning-out zone.
Preferably, in addition to the heat sink in combustion chamber, the heat sink are arranged on the top in Wei Ran areas, institute
Stating heat sink includes cooling chamber, the water charging system that moisturizing is carried out to cooling chamber and the draining system for discharging the water in cooling chamber
System.
Preferably, in addition to fume treatment retracting device, the fume treatment retracting device include：
Steam generator, for carrying normal-temperature water；
Flue gas case, circulated for high-temperature flue gas, the flue gas case is set around the excircle of steam generator；
Conduction device, the conduction device include conducting tube in a row and/or arranged in rows, described conducting tube and steam
The excircle of generator has a certain degree placement.
Preferably, the flue gas case is formed by the part or all of region outside the excircle of steam generator.
Preferably, in addition to dust arrester, the dust arrester include：
At least one guiding device, is arranged in dirt pocket, and its upper end is connected with dirt pocket；The guiding device is provided with
Some flow-guiding channels flowed through for flue gas；
Spray equipment, it is arranged on around guiding device, for cleaning guiding device；
Device for storing liquid, dirt pocket bottom is arranged on, for storing the liquid of spray equipment inflow.
Preferably, the device for storing liquid includes：
Overflow groove, for storing the liquid flowed into by spray equipment；
Drainage channel, for by the water water conservancy diversion in overflow groove into liquid storage tank；
Liquid storage tank, for storing the liquid discharged by drainage channel；
Deslagging device, the deslagging device are arranged on the bottom of overflow groove, for handling the liquid in overflow groove；
Tube assembly is drained, described drainage tube assembly one end is connected with liquid storage tank, and the other end is connected with spray equipment, for inciting somebody to action
Liquid drain in liquid storage tank is in spray equipment.
The utility model obtains following beneficial effect：
(1) auxiliary combustion equipment of the present utility model, is arranged in the region in primary zone, vertical fuel direction of feed is set
Put, mainly by the use of high-pressure vortex air pump as power source, the flue gas in combustion chamber is suctioned out into transient heating through intensified burner
Combustion chamber is sprayed into more than 450 DEG C, then with certain speed, can fully stir the mixing that biomass fuel separates out volatile matter and oxygen
The purpose of overheavy firing is realized, further improves the adequacy of fuel combustion；(2) secondary combustion-supporting device of the present utility model is set
On the region in the primary zone of Wei Ran areas one end, it is being preferably provided in 1/3 anterior region of primary zone, and it is defeated apart from fuel
Device >=800mm is sent, realizes the temperature for gradually stepping up primary zone, a more excellent burning situation is provided to fuel, can be abundant
Burning, and set along Z axis and perpendicular to fuel delivery means direction of feed, vertically carried out with primary air system with coordinating
It is combustion-supporting, ensure that fuel can obtain combustion-supporting condition in all angles direction, further improve the adequacy of fuel combustion.Fuel exists
Under the conveying of fuel delivery means, combustion area of defending oneself is transported to primary zone, the burning of combustion-supporting fuel, ensures fuel completely into master
Combustion area is fired state, and in dynamic transportation, fuel can be in the burning to suspend by setting for secondary combustion-supporting device
State, increase the burning area of fuel, so that fuel more fully burns；(3) before the utility model combustion chamber is located at charging aperture
Encircle perpendicular water direction to set, to increase the area in Wei Ran areas, so as to effectively reduce face arch temperature, to reduce the temperature in Wei Ran areas
Degree, when fuel enters Wei Ran areas from charging aperture, effectively avoids fuel from being prematurely ignited in Wei Ran areas, avoids returning burning coal
Bucket, fuel middle part are mingled with unburning material, cause fuel combustion not thorough；(4) face arch correspondence position is provided with heat sink, heat sink
The top in Wei Ran areas is arranged on, face arch is taken away to the heat in Wei Ran areas by circulating chilled water, Wei Ran areas temperature is reduced so as to reach
The effect of degree；(5) rear arch of the utility model combustion chamber is located at the position of discharging opening, and the leading section of the present embodiment rear arch is positioned at combustion
To the greatest extent corresponding to area in region, and the rear end of the rear arch, close to described burning-out zone, rear arch short transverse is tried one's best close to burning-out zone,
The temperature of burning-out zone is improved, and by heat radiation, is allowed to abundant accumulation of heat and bakes slag, the maximized after-flame for ensureing biomass fuel
Rate；(6) the fume treatment retracting device that the utility model is provided with, its flue gas case are circumferentially positioned at the excircle of steam generator
On, and the excircle of the conducting tube that includes of conduction device and steam generator has a certain degree placement, it is in a row and/or equal in column
Even setting, for flue gas case of the heat energy of flue gas from annular to be delivered in steam generator, can by flue gas case everywhere
Flue gas carries out transmission heat by conducting tube, and is delivered to the uniform heat distribution in steam generator so that leads in flue gas case
The flue gas crossed quickly realizes cooling, is easy to discharge, simultaneously because the uniformity of the heat energy transmission of conducting tube, in steam generator
Normal-temperature water can be heated quickly, be allowed to produce steam, recycled；(7) boiler of the present utility model is additionally provided with dedusting
Device, it is a part of during using materials such as guiding device made of metal, high temperature resistant, flue gas, dusts by flow-guiding channel water conservancy diversion
Flue gas, dust adsorption are fallen into the overflow groove of lower section on flow-guiding channel, and due to Action of Gravity Field, dust etc.；Another part glues
It is attached in flow-guiding channel, and guiding device, dust etc. is sprayed by spray equipment and fallen into the overflow groove of lower section, not only by dust
Deng except and spray equipment is acted on the spray of guiding device, must play a part of cleaning guiding device so that guiding device
Flow-guiding channel keep circulation status, be not plugged up preferably dedusting；And guiding device is not easily damaged, substantially prolongs it makes
Use the life-span；It is convenient to change, and easy to maintenance, wherein some or certain several guiding devices are damaged, and are carried out without by disabling dedusting
Maintenance, and the progress of dedusting is not interfered with, greatly reduce the operating cost that boiler uses；(8) liquid being flowed into overflow groove
Body (contains substantial amounts of dust), carries out treatment liquid by deslagging device, the impurity in liquid is purged, the liquid after processing
Body (i.e. water) is imported in liquid storage tank and carries out secondary use, and liquid storage tank is incorporated into spray equipment by draining tube assembly and circulated
Use, the utilization rate of water, using water wisely and the discharge for reducing sewage are improved, beneficial to environmental protection.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is a kind of structural representation of boiler embodiments for biomass fuel combustion of the utility model.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
The accompanying drawing of type embodiment, the technical scheme of the utility model embodiment is clearly and completely described.Obviously, it is described
Embodiment is part of the embodiment of the present utility model, rather than whole embodiments.Based on described of the present utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained on the premise of without creative work, all belongs to
In the scope of the utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise " are based on orientation shown in the drawings or position relationship, merely to just
In description the utility model and simplified description, rather than indicate or imply that signified device or element must be with specifically square
Position, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
" under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features
The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only
Represent that fisrt feature level height is less than second feature.
Unless otherwise defined, technical term or scientific terminology used herein are should be in the utility model art
The ordinary meaning that personage with general technical ability is understood.Make in the utility model patent application specification and claims
" first ", " second " and similar word are not offered as any order, quantity or importance, and are used only to distinguish
Different parts.Equally, the similar word such as "one" or " one " does not indicate that quantity limits yet, but represents exist at least
One.
As shown in figure 1, as embodiment of the present utility model, a kind of boiler for biomass fuel combustion, including combustion
Burn room 1, the fuel delivery means 2 for being arranged on the lower section of combustion chamber 1, combustion-supporting system and to carrying out dust removal process to flue gas after burning
Dust arrester 6, to after dedusting flue gas carry out waste heat recovery processing fume treatment retracting device 5.
According to embodiment of the present utility model, combustion chamber 1 includes Wei Ran areas, primary zone and the burning-out zone set gradually,
The import of spontaneous combustion room 1 is configured successively to export direction；In the combustion chamber 1 of the present embodiment, including positioned at charging aperture
The perpendicular water direction of face arch 11, wherein face arch 11 is set, to increase the area in Wei Ran areas, so as to effectively reduce the temperature of face arch 11,
To reduce the temperature in Wei Ran areas, when fuel enters Wei Ran areas from charging aperture, effectively avoid fuel prematurely in Wei Ran areas quilt
Light, avoid returning burning coal bunker, be mingled with unburning material in the middle part of fuel, cause fuel combustion not thorough.
Further to reduce the temperature in Wei Ran areas, fuel backfire is avoided, is also provided with cooling in the correspondence position of face arch 11
Device, heat sink are arranged on the top in Wei Ran areas, and the heat sink is preferably water circle device, are taken away by circulating chilled water
Face arch 11 arrives the heat in Wei Ran areas, so as to have the function that to reduce Wei Ran areas temperature.In the present embodiment, heat sink includes cooling
Room, the water charging system that moisturizing is carried out to cooling chamber and the drainage system for discharging the water in cooling chamber, concrete structure is herein not
It is described in detail, all methods by reducing temperature are suitable for the heat sink of the present embodiment.
According to embodiment of the present utility model, combustion chamber 1 also includes the rear arch 12 being oppositely arranged with face arch 11, wherein rear arch
12 are located at the position of discharging opening, and the leading section of the present embodiment rear arch 12 is located at corresponding to burning-out zone in region, and the rear arch 12
Rear end close to described burning-out zone, the short transverse of rear arch 12 improves the temperature of burning-out zone, and pass through heat as far as possible close to burning-out zone
Radiation, it is allowed to abundant accumulation of heat and bakes slag, the maximized burn-off rate for ensureing biomass fuel.
According to embodiment of the present utility model, combustion chamber 1 is original below fuel delivery means 2 in terms of the air distribution that burns
Provided with primary air system, along Y direction (i.e. vertical direction) by drying come combustion-supporting, primary air system is from fuel delivery means
2 below through the space of fuel delivery means 2 and by entering combustion chamber 1 after oxidation reaction occurs with fuel bed, and now in fuel
The mixing that the volatile matter separated out in the space of combustion chamber 1 on layer is also required to oxygen could realize burning, and First air can not be good
Realize, it is necessary to which combustion-supporting system further strengthens the burning of this part volatile matter.
According to embodiment of the present utility model, combustion-supporting system includes an auxiliary combustion equipment 3 and/or secondary combustion-supporting device 4, root
According to the needs of fuel combustion, combustion-supporting system of the present utility model can only set an auxiliary combustion equipment 3, can also be provided with once, two
Secondary auxiliary combustion equipment.Wherein, an auxiliary combustion equipment 3 is arranged in the region in primary zone, and preferably an auxiliary combustion equipment 3 is overheavy firing
Device, could be arranged to more as needed, and vertical fuel direction of feed is set, as figure is arranged along Z-direction, naturally it is also possible to same
Primary air system direction is configured, and all in the range of the present embodiment, intensified burner mainly utilizes high-pressure vortex air pump
As power source, the flue gas in combustion chamber 1 is suctioned out into transient heating to more than 450 DEG C through intensified burner, then with certain speed
Degree sprays into combustion chamber 1, and certain setting angle can be formed so that in combustion chamber 1 by being formed during installation, between each intensified burner
Flue gas forms eddy flow, plays extension gas residence time, while can fully stir biomass fuel and separate out the mixed of volatile matter and oxygen
The purpose for realizing overheavy firing is closed, further improves the adequacy of fuel combustion.Secondary combustion-supporting device 4 is positioned close to Wei Ran areas
On the region in the primary zone of one end, be preferably provided in 1/3 anterior region of primary zone, and apart from fuel delivery means 2 >=
800mm, the temperature for gradually stepping up primary zone is realized, provide a more excellent burning situation to fuel, can fully burn.This reality
The secondary combustion-supporting device 4 for applying example is preferably set along Z axis and perpendicular to the direction of feed of fuel delivery means 2, to coordinate with First air
System vertically carry out it is combustion-supporting, ensure fuel can obtain combustion-supporting condition in all angles direction, further improve fuel
The adequacy of burning.Fuel is under the conveying of fuel delivery means 2, and combustion area of defending oneself is transported to primary zone, the burning of combustion-supporting fuel,
Ensure fuel completely into being fired state to primary zone, and in dynamic transportation, the setting energy of secondary combustion-supporting device
Fuel is in the fired state to suspend, increases the burning area of fuel, so that fuel more fully burns, then passes through secondary combustion-supporting
Boosting is fast during device 4, and burning is quickly and abundant.
According to embodiment of the present utility model, fuel can produce substantial amounts of flue gas, dust etc., this practicality in combustion
The new fume treatment retracting device 5 by being arranged on the export direction of combustion chamber 1 carries out recovery heat energy, the fume treatment recovery
Device 5 includes steam generator 52, flue gas case 51 and conduction device, is mainly used in reclaiming high-temperature flue gas, reduces flue gas discharge
Temperature, and steam is produced by heat caused by the temperature-fall period, recycled, reach the purpose of energy-conserving and environment-protective.
Wherein steam generator 52 is used to carry normal-temperature water, and the heat energy of flue gas in flue gas case 51 is delivered into steam by conduction device sends out
In raw device 52, and the normal-temperature water in steam generator 52 is flashed into gas, carry out secondary use.
According to embodiment of the present utility model, conduction device includes conducting tube 53 in a row and/or arranged in rows, is placing
On position, the part of conducting tube 53 of the present embodiment is located in flue gas case 51, partly in steam generator 52, as shown in figure 1,
The outer circumference surface of selected steam generator 52 is as a reference plane, and the excircle of conducting tube 53 and steam generator 52 is into certain
Angle place, to be better achieved heat energy transmission, circumference of the conduction device along steam generator 52 generally in the present embodiment
Region is in a row and/or arranged in rows, and preferably conducting tube 53 is evenly distributed on the circumferential area of steam generator 52, for inciting somebody to action
Even heat and quickly it is delivered in steam generator 52, so that the flue gas passed through in flue gas case 51 quickly realizes cooling,
It is easy to discharge, simultaneously because the uniformity of the heat energy transmission of conducting tube 53, the normal-temperature water in steam generator 52 can be carried out quickly
Heating, is allowed to produce steam, is recycled.
According to embodiment of the present utility model, conducting tube 53 is preferably super heat-conductive pipe, and the capacity of heat transmission is strong, heat output is big, enters
One step improves the treatment effeciency and effect of the utility model heat transmission equipment.
As embodiment of the present utility model, flue gas case 51 is formed by the region outside the excircle of steam generator 52,
The structure distribution in a ring of flue gas case 51 that region is formed.Flue gas case 51 can be set to square structure or similar square structure；Flue gas
Case 51 can be set to cylinder or similar cylindrical structural, and similarly, steam generator 52 can be protected with the Mechanical Builds of flue gas case 51
Hold consistent, flue gas case 51 of the present utility model, steam generator 52 are more preferably cylindrical structural when in use, conducting tube 53 into
Even circumferential is distributed between flue gas case 51 and steam generator 52, is more uniformly passed the heat energy of flue gas in flue gas case 51
It is delivered to regional in steam generator 52 so that heat energy transmits uniformly and efficient.
According to embodiment of the present utility model, fuel can produce substantial amounts of flue gas, dust etc., this practicality in combustion
The new dust arrester 6 by being arranged on the export direction of combustion chamber 1 carries out dedusting, and the dust arrester 6 includes：It is at least one to lead
Device 62 is flowed, is arranged in dirt pocket 61, its upper end is connected with dirt pocket 61；The guiding device 62 supplies flue gas provided with some
The flow-guiding channel flowed through；Spray equipment 63, it is arranged on around guiding device 62, for cleaning guiding device 62；Device for storing liquid,
The bottom of dirt pocket 61 is arranged on, for storing the liquid of the inflow of spray equipment 63.
According to embodiment of the present utility model, guiding device 62 is arranged in casing, and its upper end is connected with casing, and lower end is leaned on
The bottom of nearly casing, and have a certain distance apart from bottom half, i.e. lower end connects with bottom half without contacting, this implementation
The guiding device 62 of example is provided with some flow-guiding channel (not shown) flowed through for flue gas, dust etc., preferably made of metal
Mesh structure, the metal material that preferably such as stainless steel is not easy to get rusty are made, and certain aluminum, copper product are suitable for this reality
The guiding device 62 of example is applied, to consider cost, the material such as stainless steel is generally selected and is made.If the dry hole that screen cloth is provided with is used as
Flow-guiding channel (not shown), facilitates the circulation of flue gas, dust etc., and the tail gas after coal-fired boiler combustion passes through the dedusting of the present embodiment
After device, it is also necessary to the processing of tail gas is carried out by next process, to improve the efficiency of dedusting, therefore flow-guiding channel is (on screen cloth
Hole) set it is some, its mesh number is set as needed, indefinite from mesh numbers such as (300-2000), belongs to the present embodiment
Range of choice.Further to improve efficiency of dust collection and dust removing effects, generally the guiding device 62 (screen cloth) of the present embodiment is set
Into organ shape, it is easy to the quick circulation of the tail gas such as flue gas, dust.Guiding device 62 of the present utility model is not easily damaged, prolongs significantly
Its service life is grown；And change conveniently, easy to maintenance, wherein some or certain several guiding devices 62 are damaged, without by stopping
Repaired with dedusting, and do not interfere with the progress of dedusting, greatly reduce the operating cost that boiler uses；Using metal system
Into guiding device 62, high temperature resistant, when the material such as flue gas, dust is by flow-guiding channel water conservancy diversion, a part of flue gas, dust adsorption
Fallen on flow-guiding channel, and due to Action of Gravity Field, dust etc. in the overflow groove 64 of lower section, realize dedusting.
According to embodiment of the present utility model, spray equipment 63, it is arranged on around guiding device 62, that is, is arranged on water conservancy diversion
The position of 62 side on the upper side of device, the shower nozzle of spray equipment 63 set the cleaning fluid (such as water) multiple, guarantee spray equipment 63 sprays
The whole of guiding device 62 can be flushed to completely, you can to clean the water conservancy diversion of guiding device 62, especially guiding device 62 completely
Passage (hole), the fouls such as the dust being adhered on flow-guiding channel are cleared up, and attachment is connected by the spray of spray equipment 63
Logical cleaning fluid is fallen into the overflow groove 64 of lower section, not only by dust on guiding device 62 etc. except and spray equipment 63 is to leading
The spray effect of device 62 is flowed, must play a part of cleaning guiding device 62 so that the flow-guiding channel of guiding device 62 is kept
Circulation status, it is not plugged up preferably dedusting.
According to embodiment of the present utility model, device for storing liquid, bottom half is arranged on, is flowed into for storing spray equipment 63
Liquid.The device for storing liquid of the present embodiment includes overflow groove 64, drainage channel and liquid storage tank 65, and overflow groove 64 is used to store by spraying
The liquid (foul such as subsidiary dust of cleaning fluid) that shower device 63 flows into, the bottom of the present embodiment overflow groove 64 is arranged to U-shape structure,
The U-shape structure of similar V-type opening is preferably provided to, facilitates dust and other liquid easily to drop into overflow groove 64, is dedusting
Facility is provided, and improves efficiency of dust collection.The liquid being flowed into overflow groove 64 first passes through removing for the bottom that is arranged on overflow groove 64
Slag device 7 carries out removing Slag treatment, the impurity in the liquid in overflow groove 64 is purged, the liquid after processing is led to by draining
Road water conservancy diversion is stored into liquid storage tank 65, carries out secondary use；Liquid (water after slagging-off) in liquid storage tank 65 passes through drainage
Tube assembly 66 is incorporated into spray equipment 63 and recycled, and can effectively increase the utilization rate of water, using water wisely and reduction
The discharge of sewage, beneficial to environmental protection.
According to embodiment of the present utility model, the lower end of guiding device 62 is located in overflow groove 64, and the guiding device
62 lower end correspondence position is slightly below the horizontal plane position of overflow groove 64, the preferably lower end of guiding device 62 to spilling water
The horizontal plane position of groove 64 is (50-100) mm, plays a part of the end of sealing guide device 62, is improved on guiding device 62
The dust removing effects of the flow-guiding channel (not shown) of setting.
Boiler of the present utility model, by the way that using biomass as fuel, burning is abundant, and caused flue gas passes through off-gas recovery
Device carries out recovery heat energy, energy-conserving and environment-protective, and its tail gas carries out dust removal process by dust arrester again so that the flue gas finally discharged
It is pollution-free, beneficial to environmental protection.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The scope of scheme.
In a word, preferred embodiment of the present utility model is the foregoing is only, it is all according to present utility model application the scope of the claims institute
The equivalent changes and modifications of work, it should all belong to the covering scope of the utility model patent.
Claims (10)
- A kind of 1. boiler for biomass fuel combustion, it is characterised in that including：Combustion chamber, the combustion chamber include Wei Ran areas, primary zone and the burning-out zone set gradually；Combustion-supporting system, the combustion-supporting system include an auxiliary combustion equipment and/or secondary combustion-supporting device, and an auxiliary combustion equipment is set Put in the region in primary zone, the secondary combustion-supporting device is positioned close on the region in the primary zone of Wei Ran areas one end.
- 2. the boiler according to claim 1 for biomass fuel combustion, it is characterised in that：The secondary combustion-supporting device In 1/3 region anterior positioned at primary zone.
- 3. the boiler according to claim 1 for biomass fuel combustion, it is characterised in that：The secondary combustion-supporting device Apart from fuel delivery means >=800mm.
- 4. the boiler according to claim 1 for biomass fuel combustion, it is characterised in that：The secondary combustion-supporting device Set along Z axis and perpendicular to fuel delivery means direction of feed.
- 5. according to the boiler for biomass fuel combustion described in claim any one of 1-4, it is characterised in that the burning Room includes：Positioned at the face arch of charging aperture, the perpendicular water direction of face arch is set；Positioned at the rear arch of discharging opening, the leading section of the rear arch is located at corresponding to burning-out zone in region, and the rear end of the rear arch Close to described burning-out zone.
- 6. the boiler according to claim 5 for biomass fuel combustion, it is characterised in that：Also include being located at combustion chamber Interior heat sink, the heat sink are arranged on the top in Wei Ran areas, and the heat sink includes cooling chamber, cooling chamber is entered The water charging system of row moisturizing and the drainage system for discharging the water in cooling chamber.
- 7. the boiler according to claim 6 for biomass fuel combustion, it is characterised in that also returned including fume treatment Receiving apparatus, the fume treatment retracting device include：Steam generator, for carrying normal-temperature water；Flue gas case, circulated for high-temperature flue gas, the flue gas case is set around the excircle of steam generator；Conduction device, the conduction device include conducting tube in a row and/or arranged in rows, described conducting tube and steam generation The excircle of device has a certain degree placement.
- 8. the boiler according to claim 7 for biomass fuel combustion, it is characterised in that：The flue gas case is by steam Part or all of region outside the excircle of generator is formed.
- 9. the boiler according to claim 8 for biomass fuel combustion, it is characterised in that also including dust arrester, The dust arrester includes：At least one guiding device, is arranged in dirt pocket, and its upper end is connected with dirt pocket；The guiding device is provided with some The flow-guiding channel flowed through for flue gas；Spray equipment, it is arranged on around guiding device, for cleaning guiding device；Device for storing liquid, dirt pocket bottom is arranged on, for storing the liquid of spray equipment inflow.
- 10. the boiler according to claim 9 for biomass fuel combustion, it is characterised in that the device for storing liquid bag Include：Overflow groove, for storing the liquid flowed into by spray equipment；Drainage channel, for by the water water conservancy diversion in overflow groove into liquid storage tank；Liquid storage tank, for storing the liquid discharged by drainage channel；Deslagging device, the deslagging device are arranged on the bottom of overflow groove, for handling the liquid in overflow groove；Tube assembly is drained, described drainage tube assembly one end is connected with liquid storage tank, and the other end is connected with spray equipment, for by liquid storage Liquid drain in pond is in spray equipment.
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|---|---|---|---|
| CN201720188188.6U CN206669692U (en) | 2017-02-28 | 2017-02-28 | Boiler for biomass fuel combustion |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720188188.6U CN206669692U (en) | 2017-02-28 | 2017-02-28 | Boiler for biomass fuel combustion |
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| CN206669692U true CN206669692U (en) | 2017-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676771A (en) * | 2017-02-28 | 2018-02-09 | 浙江爱立美能源科技有限公司 | A kind of strengthening combustion system |
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2017
- 2017-02-28 CN CN201720188188.6U patent/CN206669692U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676771A (en) * | 2017-02-28 | 2018-02-09 | 浙江爱立美能源科技有限公司 | A kind of strengthening combustion system |
| CN107676771B (en) * | 2017-02-28 | 2023-08-04 | 浙江浙燃能源有限公司 | Intensified combustion system |
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Effective date of registration: 20210402 Address after: 323000 201-3, 2nd floor, building 1, Green Valley Information Industrial Park, 368 Chengbei street, Liandu District, Lishui City, Zhejiang Province Patentee after: Zhejiang Zhefeng Energy Co.,Ltd. Address before: 2F, building 3, Xicheng Bosi, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province 310011 Patentee before: ZHEJIANG AILIMEI ENERGY TECHNOLOGY Co.,Ltd. |
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